Filling clamping and parting mechanism for looms



.E. S. STIMPSON. FILLING CLAMPING AND PARTING MECHANISM FOR LOOMS.

APPLICATION FILED OCT. 20, I92I. 1 ,42?,423. Patented Aug. 29, 1922,

2 SHEETS-SHEET I- Fig.1.

\nvenToT.

Edward $.STimpson byimJMW Aflys.

E. S. STIMPSON. FILLING CLAMPING AND PARTING MECHANl SM FOR Looms. APPLICATION FILED OCT. 20, I92].

1 12'7,42 3 Patented Aug. 29; 1922.

2 SHEETS-SHEET 2.

\nvenTor. Edward SSH mp son B MMMLMZ- Afiys.

I. it f FF! rs are a ise ft in EDWARD s. STIMPSON, or Hermann. ams'snennsn rrs, ASSIGNOB, TO Barrens. conronsrron, or HOBEDALE, IMASSAGEZ FILLING CLAMPING ANDPARTING ll'IECHANISI/f FOR, LOOM'Ei.

memes.

To all whom it may concern: I

Be it known that I, EDWARD S. S'rrMrsoN, a citizen of the United States, and: resident of Hopedale, county of Worcester, State of llfilassachusetts, have invented an Improve ment in Filling Clamping and Parting Mechanism for Looms, of which the follow ing. description, in. connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts. f r v l This invention relates to automat cfilling replenishing looms wherein the running filling is replenished prior to complete exhaustion and wherein the old or spent filling is parted between the cloth and the shuttle by parting means mounted upon, a carrier, such as the usual swinging shuttle feeler, so as to be moved bodily rearwardly and forw'ardly, or toward and from the lay.

' The object of the invention isto provide an improved, simple .and efifective means for operating the filling clamping and parting device when, and only when, a fresh filling carrier is transferred from the magazine or supply to the lay. I I

The object of the invention isfurther to provide a construction which may be readily adapted to existing looms.

The object of the invention is further to provide a construction which will yield upon the occurrence of an. abnormal resistance to the operation of the filling clamping and parting device. I i The object of the invention is further tt provide a construction which eliminatesthe necessity of special accuracy in the assemblingr, positioning and ad usting ot the filling clamping; and parting mechanism.

The object of the invention is further to provide means for insurin the proper ope-1r ing and closing of the fillingclamping and parting means and toprevent the possibility of undesirable opening of the filling clamping and parting means which might release the filling end so'that it. would be drawn into the fell of the cloth.

The object of the invention is further to provide a filling clamping and parting device having a single lnstrumentality operable by a suitable actuator. to close said filling clamping and parting means and which is also operable by other mechanism to open Specification of Letters Patent.

Application filed October 20; 1921.

construction is familiar to those n eosPoRArIonor ains;

PatentedAug. 29, Serial 'No. 509,078. i

said fillingclamping and partingmeans during the positioning movement thereof.

These and other objects and features of the invention will more fully appear from the following description and the accom panying drawings and will be particularly pointedout inthe claims. i

In th edrawings: F 1g. lis a transversesection of a portion of an automatic filling replenishing loom, with. apreferred formof the present invention embodied therein, showing the filling clampingand parting means in the forward or retracted clamping position; l i q'. 2 is a detail elevation showing the fillingelampingand parting means positioned to engage the running filling from a shuttle just prior to transfer; and, i

Fig. v3 is a detail plan view of the filling clamping and parting device and mechanisms-fer actuating the same in the posi tionillustrated in Fig. 2. I n

The construction above illustrated is that of thewell known Northrop type of antomatic filling replenishing loom and as this skilled in the art 'no-detailed illustration or description, beyond the features particularly concerned with this invention, is necessary.

The bread I feature of tion'of the filling clampingv means when, and only when, a freshfilling carrier is transferredfrom the magazine to the lay. isdisclosed in the patent to Davis No. 138L878, granted January 20 191%, and this patent also serves to illustrate the general type of mecl'ianism in connection with which a preferred. form ofthe present invention is herein illustmted.

il 'hepreseut invention is also subordinate tosimilar inventions made the subject matter of applications, tiled by me ltlav l-t.

Seri a1 Numbers 469,508 and469,50 9 to whicli engage and open thefillingjclamping and parting; means during the positioning moveinsuring the opera-' and parting ment of said filling clamping and parting n'ieans. f One of the principal differences 'iresentedby the present invent on comprises a separate means for'open ngthe filling clamping and parting means during the positioning movement of the latter, the means for thus opening the filling clamping and parting device being so located that any abnormal movement of the filling clamping and parting device, after the filling end has been parted and clamped, will not release the filling end.

More specifically the invention comprises a switch cam adapted to open the filling clamping and parting device during its positioning movement by engaging the same stud as that which is engaged by the actuator to close said clamping and parting device.

The present application is also a con tinuation in part of the prior application No. 169,508 in respect to the actuator-supporting bracket which is mounted upon the magazine adjacent to the yieldable filling carrier support, the present invention further introducing a switch cam mounted upon said bracket for causing the opening of said filling clamping and parting means The lay 1, the transferrer 2 which, upon call for filling replenislnnent, acts to transfer the filling carrier or in this case the bobbin 3 fronrthe magazine or hopper a to the lay, or in this case the shuttle 5 at the replenishing side of the loom; the controlling rock shaft 6 which is rocked upon the indication of substantial exhaustion in the running shuttle and acts to initiate filling replenishment; the breast beam 7 the shuttle feeler arm 8 which rocks and slides on the stud 9, being swung over the lay in front of the boxed shuttle upon the operation of the controlling rock shaft 6 and returned under the action of the spring 10 are parts the construction and operation of which will readily be understood by one familiar with the art such as is disclosed in. the patent to Davis above mentioned and the patents therein referred to.

The replenishing magazine 1 is provided with the usual guide stop 11 against which the filling carrier or bobbin 3 is brought into position for transfer. The filling carrier to be transferred is yieldin gly supported and guided on. the side opposite to the stop 11 by the usual movable filling carrier support 12 in the form of a fiat linger located adjacent the inner face of the magazine. This supporting finger 12 is connected to a stud 13 extending through the side of the magazine and carrying on the opposite side an arm 14-. A spring 15 is held between a lug 16 on the magazine and the head 17 of a slide rod 18 connected with the arm 1%, the rod being guided in the lug. The stop 11 thus forms one side of a throat through which the filling carrier passes from the magazine to the lay, the filling carrier sup port or finger 12 forming the other side. When the transferrer 2 is operated to transfer a fresh filling carrier from the magazine to the lay, this filling carrier support yields and supports and guides the filling carrier as it passes to the lay.

The filling clamping and parting device may be of any suitable form and construction and is shown as generally similar to that illustrated in the patents above referred to. This device is also shown as supported and carried by the usual shuttle feeler 8. The movable blade 19 co-operates with fixed blades, one of which is shown at 20, and the movable blade 19 secures its opening and closing movement about the pivot 21.

When a replenishment of filling is called for the shaft 6 is rocked in the usual manner raising the arm 29. extending rearwardly therefrom and therethrough rocking the shuttle feeler 8 toward the lay. If the shuttle is properly boxed this feeler will pass in front of the shuttle in the usual manner and the dog 23 will be brought into the path of a hunter on the lay and thereupon the transferrer 2 will be operated to transfer the filling carrier 3 from the magazine to the lay therebeneath. i.

lVhen the shuttle feeler thus swings rear wardly over the lay the filling extending from the filling carrier to be abandoned enters between the members of the filling clamping and parting device which are then in open position. In the case of the type of mechanism to which this invention relates the. filling clamping and parting device is closed to clamp and part the filling when, and only when. a filling carrier is actually transferred by the transferjrer from the magazine to the lay. Consequently, if the shuttle be improperly boxed so that it is struck by the shuttle feeler, or if the conditions are such that the shuttle feeler, no matter to what extent it may move, does not effect a filling transfer, or if for any reason the filling transfer does not actually take place then there can be no severance of the filling by the filling clamping and parting device.

This result is secured in the present invention by operating the filling clamping and parting device through the movement of the filling carrier support 12 which only moves when actual transfer takes place.

The present invention provides a yieldable operative connection between this filling carrier support 1.2 and the filling clamping and parting device when in operative position so that in case of any abnormal resistance to a relative movement between these parts there will be no danger of a smash or of damage to the loom.

In the present constructionv supporting bracket 24 is adjustably secured to the magazine or hopper {t by a bolt 25 which passes through a slot 26 in said bracket so that the bracket may be adjusted. to. any desired position and locked therein by a nut 27 upon the bolt 2.5. This supporting bracket carries a horizontal stud 28 which serves as the fulcrum for an actuating lever by means of which themovement of, the filling carrier fitting over the stud 28.. One arm 30 of the lever is bent, into U-shape and, fits over a stud 31 projecting laterally from the. arm 14 connected'with the filling carrier support 12. The other arm 32 of the actuator lever is provided with a downwardly bent portion 33, a laterally bent portion 34, and a forwardly bent portion'35 which forms a foot positioned to oscillate vertically ing aplane which intersects the path of movement of an actuator engaging instrumentality which, in the present instance, is inthe form of a pin. or stud 36 extending laterally from the movable member 19 of the filling clamping and parting device.

The present construction differs from the construction illustrated in the prior application No. 469,508, in that the downwardly bent portion 33 of-the actuator is. entirely out of the path of. movement of the stud 36 upon the filling clamping and parting device, and in the present construction said actuator is operable only to close the positioned filling clam ing and parting device upon transfer. en transfer takes place the filling carrier support 12 is rocked by the actual transfer of the filling carrier from the magazine to the lay in the filling replenishing operation. Then the actuator lever will be rocked about the stud 28,.thus raising the foot 35 of the acutator and engaging the stud 36 upon the movable member 19 of the filling clamping and parting device and effecting the clamping and parting of the filling, If for any reason whatever there is an abnormal resistance to relativemovement between the filling carrier support and the movable member of the filling clamping and parting device then the actuator lever will flex or yield and thus no injury or damage will occur to any of the parts.

After the clamping and parting operation has taken place the shuttle feeler swings forwardly carrying the end of the filling shuttle. I

extending to the fell andmoves: into n the position illustrated in Fig. 1; consequently,

andwhich lies in the path of the stud 36 of the filling clamping and parting device during its positioning movement, that is to say, during the movement of the, filling clamping and parting device into the position in which itv is adapted to engage the filling running fromthe fell o f thecloth to the In the preferred construction illustrated herein; a gravity switch cam 37 is freely pivoted upon a stud 38 which issecured in a slot 39 in an upwardly turned flange 40 of a plate 41 which is adjustably securedto a web or flange 42 extending laterally from thebraeket 24. The switch cam-37 is provided with alaterally extending lug 43, which engages the end of the flange 40 and limits the rearward movement ofthe switch cam.

The switch cam is-also provided with a lower lnchned cam face 44 and a rear vertical face 45 which areadapted respectively to beengaged by the stud 36 upon the rearward and forward movements oft-he fillingcl'amping and parting device, the cam face 44 acting to open the members of the filling clamping and partingdevice. during the rearward or, positionlng movement ofthe filling clamping and partingdevice whlle the engagement of the stud 36 with the vertical face 45 serves to swing the switchcam about its pivot during the forward movement; of the filling clamping and parting device without opening the latter, since the switchcam is merely moved about itsipivot during the return or forward movement of the filling clamping and parting device.

Injthe preferred construction illustrated herein the adjustment of the plate 41 is provided by a bolt and slot connection. comprising a slot 46 in the flange or web 42 which receives a bolt 47 which passes through the plate 41 and web 42..

Desirably the plate 41 is provided with a slot. 48 which receives the vertical port-ion 33 of the actuator lever and servesto steady it inits movement andto prevent undue flexing thereof.

s It will be observed that in the operation of the device the rearwardpositioning movement of the filling clamping and parting mechanism, which results from the movement of the controller arm upon call for transfer, first causes the stud 36 to engage the cam face 44 of the switch cam 37 which lies in its path, causing the cam face of said.

switch cam to depress the stud 36, thereby opening the filling clamping and parting means. Further rearward movement of the filling clampingand parting means positions the same so that the running filling passes between the movable and stationary jaws of the filling clamping and parting device.

The transfer of the filling carrier from the magazine to the hopper operates the filling carrier support and through it the actuator lever, as above described, causing the foot of said actuator lever to raise the stud 36 and thereby cause the movable member 19 of the filling clamping and parting device to clamp and part the filling. After transfer has been effected the filling clamping and parting device is moved forward to the position illustrated in Fig. 1. During such in vement the stud 36 strikesagainst the vertical face d5 of the switch camand swings the cam forwardly. Since there is no resistance to the forward movement of the switch cam 37 this engagement of the pin 36 doees not serve to actuate the movable member 19 of the filling clamping and parting device, and the filling end, therefore, is held until released by the next positioning movement of the filling clamping and parting device.

It will be understood thatthe particular embodiment of the invention disclosed herein is illustrative and not restrictive and that various changes in form, construction and arrangement of parts may be made within the spirit and scope of the following claims.

Having thus described my invention, what I claim as new, and desiretosecure by Lettors Patent, is: p

1. An automatic filling replenishing loom comprising a lay a replenishing magazine for the fresh filling carriers, means for transferring afresh filling carrier from the magazine to the lay, a filling clamping and parting device movable into a position to re'-' ceive the running filling when the lay is in position for transfer the said filling clamping and parting device having an instrumentality to be engaged by an actuator to effect the closing of the clamping and parting device, an actuator, located out of the path of movement of said actuator engaging instrumentality during the positioning movement of said clamping and parting device actuated by or through the transfer of the fresh filling carrier from the magazine to the lay and having means to engage and actuate said instrumentality to effect the closing of said clamping and parting means, and a gravity sw1tchcam mounted on said magazine, located in the path of said actuator engaging instrumentality and acting upon said actuator engaging instrumentality to open said clamping and parting means during the positioning movement thereof.

2. An automatic filling replenishing loom comprising a la a replenishing magazine for the fresh filling carriers, means for transfeiring a fresh filling carrier from the magazine to the lay, a filling clamping and parting device movable into a position toreceive the running filling when the lay is in position for transfer having a laterally extending stud adapted to be engaged by an actuator to effect the closing of said clamping and parting device, a filling carrier support pivotally mounted on the magazineand movable by the filling carrier upon its discharge from the magazine to the lay,a supporting bracket rigidly mounted upon the magazine a flexible actuator lever fuL crumed on said bracket e with one arm the pivoted filling ca .s. support and having its other arm provided with a downwardly extending portion located out of the path of said stud followed by a laterally olfset foot portion extending into theplane of the path of movement of said stud and operable by the movement of the filling carrier support, during transfer, to engage and actuate said stud to effect the closing of said clamping and parting device.

WARD S. ['TllijiPSON. 

